Naslov
The role of taphonomic features in the paleoecological interpretation of Eocene carbonates from the Adriatic carbonate platform (PgAdCP)

Autori
Ćosović, Vlasta ; Drobne, Katica ; Ibrahimpašić, Haris

Izvornik
Neues Jahrbuch fur Geologie und Palaontologie - Abhandlungen (0077-7749) 265 (2012), 2; 101-112

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Lutetian; Paleogene Adriatic carbonate platform; Adriatic Sea; Larger benthic foraminifera; encrustation; fragmentation; abrasion; bioerosion; taphonomic alternation

Sažetak
The preservation conditions of larger benthic foraminifera from the Lutetian Foraminiferal Limestones from Lavsa Island, Kornat Archipelago (Adriatic Sea, Croatia) were examined in order to provide a description of the taphonomic signature and a semi-quantitative estimation of test degradation in thin section analysis. Taphonomic alteration of alveolinid, nummulitid and orthophragminid tests includes borings, encrustation, fragmentation and abrasion. Alveolinid tests displayed the greatest mechanical damage. Furthermore, boring was found more often within orthophragminids and nummulitids than in alveolinids. Encrustation equally affected orthophragminids and alveolinids, although different encrusting organisms were involved. Transport of foraminiferal tests from inner- and middle ramp settings into the surrounding deeper photic, low energy setting resulted in abrasion and fragmentation of Alveolina sp., robust Nummulites sp. and orthophragminids. This study shows that microtaphofacies analysis can be used to refine the architectural model of the Paleogene Adriatic carbonate platform.

Izvorni jezik
Engleski

Znanstvena područja
Geologija

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